hair analysis


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hair analysis

Etymology: AS, haer + Gk, a loosening
chemical analysis of a hair sample to find possible evidence of exposure to a toxic substance. Molecules of lead compounds and other chemicals are absorbed and stored in hair shafts. Hair analysis is also used to determine possible causes of malnutrition. Samples for analysis are taken from areas close to the scalp to eliminate chances that toxic chemicals found in the hair may have been absorbed from air pollutants.
The use of scalp hair as a primary analytical specimen
Mainstream medicine Hair analysis is of limited usefulness in trace element analysis
Quackery Hair analysis is allegedly useful for evaluating health and nutritional status, protein and vitamin levels
Substance abuse The use of samples of hair to detect chronic drug abuse
Methods RIA, EIA, GC/MS
Drugs detected Amphetamines, cocaine, heroin
Levels of detection 10 pg or 10 ng/mg of hair
Toxicology The most reliable use of hair analysis is to detect chronic heavy metal poisoning—e.g., arsenic, lead, mercury

hair analysis

The use of scalp hair as primary analytic specimen Mainstream medicine HA is of limited usefulness in trace element analysis  Substance abuse The use of samples of hair to detect chronic drug abuse Methods RIA, EIA, GC/MS Drugs detected Amphetamines, cocaine, heroin Levels of detection 10 pg or 10 ng/mg of hair Toxicology The most reliable use of HA is to detect chronic heavy metal poisoning–eg, arsenic, lead, mercury

hair a·nal·y·sis

(hār ă-nali-sis)
Testing for retrospective purposes when blood and urine can no longer be expected to contain a particular contaminant; most widely used in forensic toxicology and environmental toxicology; used controversially in alternative medicine.
References in periodicals archive ?
Morrison has called in a US-based expert, as well as Thames Valley Police, in an effort to prove outside meddling, going to the lengths of commissioning a hair analysis for Our Little Sister.
Hair analysis and self-report of methamphetamine use by methamphetamine dependent individuals.
I consider hair analysis a suitable alternative in locating the problem.
In addition, segmental hair analysis can disclose a month to month (considering 1 cm segment cuts) eventual repeated chronic exposures and, in some instances, identify patterns of drug use/administration (Pichini et al.
There is a need for specialist knowledge for hair analysis and the process can be difficult and open to mistakes (Garden et al.
Tenders are invited for Substance Abuse Hair Analysis Testing For Cscd
The offerings include a hair analysis which is completed twice per year, 1-on-1 virtual consultations with hair professionals, customized hair care plan, salon booking portal with trusted stylists, products delivered based on your hair compatibility, exclusive content, regimens, and styling suggestions.
It included fun-filled activities such as live cooking demonstrations, nutrition and healthy eating advice, full medical and dental checkups, safety demonstrations, screening services, and weight, skin and hair analysis.
A forensic toxicologist also told Nottingham Crown Court that the concentration of methadone in two-year-old Fenton Hogan's system was stronger than seen in those taking the drug to kick heroin habits - and hair analysis suggested repeated exposure to the drug.